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Advances in Laser Processing and Mechanical Properties of Polymeric Materials

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Polymeric Materials".

Deadline for manuscript submissions: 10 September 2024 | Viewed by 458

Special Issue Editors

Dr. Annamaria Gisario
E-Mail Website
Guest Editor
Department of Mechanical and Aerospace Engineering, Sapienza University of Rome, Via Eudossiana, 18, 00184 Rome, Italy
Interests: Laser material processing, surface treatment and coating technology, compostable and biodegradable polymer processing, 3D and 4D printing of shape memory and programmable polymeric materials, artificial intelligence in processes manufacturing
Special Issues, Collections and Topics in MDPI journals
Department of Production and Industrial Engineering, Birla Institute of Technology: Mesra, Ranchi 835215, India
Interests: Laser material processing, advanced welding technologies, micro-manufacturing, modeling and simulation of manufacturing processes, decision engineering
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Recent progress in laser processing techniques and their influence on the mechanical properties of polymer materials are promoting the development of a great number of research activities. Laser processing has emerged as a promising method for joining, modifying or enhancing the performance of polymers due to its precision, non-contact nature and ability to induce localized changes.

Significant advancements have been made through the use of Laser Transmission Welding (LTW): this process allows for the precise control of heat distribution and enables the welding of complex geometries with minimal thermal damage. Laser transmission welding offers advantages such as high joint strength, excellent sealing properties and the ability to join dissimilar materials. It has been applied in industries such as automotives, medical devices, food packaging and electronics, where the demand for reliable and aesthetically pleasing polymer joints is high.

Furthermore, useful advancements have been made in the use of Laser Ablation: this technique allows for precise patterning, microstructuring and surface modification, enabling the improved adhesion, wettability and bioactivity of polymeric surfaces. In particular, Laser-Induced Forward Transfer (LIFT) has gained attention due to its ability to deposit precise amounts of polymeric materials onto desired substrates. LIFT enables the fabrication of microstructures, sensors and functional devices, leading to advancements in areas such as electronics, optoelectronics and biomedical applications.

Finally, Laser-Based Additive Manufacturing has revolutionized the production of polymeric components with complex geometries. By selectively curing or melting polymer layers, intricate structures can be created with tailored mechanical properties, including improved strength, flexibility and biocompatibility.

These are the potential topics for this Special Issue, but the scope of this Special Issue is not limited to them. The journal will publish communications, articles and reviews that are of high quality, impact and novelty, as well as being interesting for wide audiences of scientific and technological communities.

Dr. Annamaria Gisario
Dr. Bappa Acherjee
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Materials is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.


  • laser material processing
  • mechanical properties
  • polymeric materials
  • laser transmission welding
  • laser ablation
  • laser-induced forward transfer
  • laser-based additive manufacturing
  • metamaterials
  • tailored mechanical properties.

Published Papers (1 paper)

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18 pages, 2582 KiB  
Multi-Attribute Decision Making: Parametric Optimization and Modeling of the FDM Manufacturing Process Using PLA/Wood Biocomposites
Materials 2024, 17(4), 924; - 17 Feb 2024
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The low carbon footprint, biodegradability, interesting mechanical properties, and relatively low price are considered some of the reasons for the increased interest in polylactic acid-based (PLA-based) filaments supplied with natural fillers. However, it is essential to recognize that incorporating natural fillers into virgin [...] Read more.
The low carbon footprint, biodegradability, interesting mechanical properties, and relatively low price are considered some of the reasons for the increased interest in polylactic acid-based (PLA-based) filaments supplied with natural fillers. However, it is essential to recognize that incorporating natural fillers into virgin PLA significantly impacts the printability of the resulting blends. The complex inter-relationship between process, structure, and properties in the context of fused deposition modeling (FDM)-manufactured biocomposites is still not fully understood, which thus often results in decreased reliability of this technology in the context of biocomposites, decreased accuracy, and the increased presence of defects in the manufactured biocomposite samples. In light of these considerations, this study aims to identify the optimal processing parameters for the FDM manufacturing process involving wood-filled PLA biocomposites. This study presents an optimization approach consisting of Grey Relational Analysis in conjunction with the Taguchi orthogonal array. The optimization process has identified the combination of a scanning speed of 70 mm/s, a layer height of 0.1 mm, and a printing temperature of 220 °C as the most optimal, resulting in the highly satisfactory combination of good dimensional accuracy (Dx = 20.115 mm, Dy = 20.556 mm, and Dz = 20.220 mm) and low presence of voids (1.673%). The experimentally determined Grey Relational Grade of the specimen manufactured with the optimized set of process parameters (0.782) was in good agreement with the predicted value (0. 754), substantiating the validity of the optimization process. Additionally, the research compared the efficacy of optimization between the integrated multiparametric method and the conventional monoparametric strategy. The multiparametric method, which combines Grey Relational Analysis with the Taguchi orthogonal array, exhibited superior performance. Although the monoparametric optimization strategy yielded specimens with favorable values for the targeted properties, the analysis of the remaining characteristics uncovered unsatisfactory results. This highlights the potential drawbacks of relying on a singular optimization approach. Full article
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